Monday, March 23, 2015

octopus intelligence + article from Aeon

From the article "Being a Sandpiper":

Intelligence is ubiquitous, not just in chimpanzees, dolphins and parrots, but in octopuses, archerfish, prairie dogs and honeybees — a veritable Noah’s Ark of braininess...
By emphasising the kinship between animals and human beings, Darwinian taxonomy could have opened the door to thinking about the consciousness of individual animals. But, instead, the opposite happened. Even as evolution’s mechanics were accepted and expanded, the views of Darwin and Romanes on individual animal consciousness were rejected, consigned to cautionary tales of how even the most brilliant scientists can get things wrong. By the 1940s, when the great systematist Ernst Mayr settled on a fuzzy but useful standard definition of a species — as a population with a common reproductive lineage that could interbreed — the possibility of animal consciousness and individuality, so evident to anyone with a pet dog or cat, was largely eliminated from mainstream science. We could accept our animal bodies, and classify ourselves on that basis, yet had to avoid the implication that animals might have human-like minds...
A new age of machines and industry spawned the behaviourism of the psychologist B F Skinner who, echoing Aristotle and Descartes, proposed that animals were nothing but conduits of stimulus and response (as were humans). Seeming evidence of higher thought was an illusion produced by some simpler mechanism. ..
These days, Goodall is a hero, Griffin a prophet, and studies of animal intelligence ubiquitous: not just in chimpanzees, dolphins and parrots, but in octopuses, archerfish, prairie dogs and honeybees — a veritable Noah’s Ark of braininess. ..
[E]ven rats, it turns out, feel some empathy for one another. A team at the University of Chicago found that rats became agitated when seeing surgery performed on other rats, and a follow-up study in 2011 found that, when presented with a trapped labmate and a piece of chocolate, rats free their caged brethren before eating. ..
The weight of evidence indicates that humans are not unique in possessing the neurological substrates that generate consciousness. Non-human animals, including all mammals and birds, and many other creatures, including octopuses, also possess these neurological substrates.
Link to article HERE, a recent Aeon video posted about the octopus below. See also THIS After Nature post on the "otherness" and intelligence of animals.